Support frame for a seat



FIG. 1 is a top perspective view of a support frame for a seat showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a side elevational view thereof;

FIG. 7 is a top plan view of a support frame for a seat showing a second embodiment of my new design;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a back elevational view thereof;

FIG. 11 is a front elevational view thereof; and

FIG. 12 is a side elevational view of my sofa base. 

The ornamental design for a support frame for a seat, as shown and described. 